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Table 2 Correlation between DCE-MRI parameters with cancer staging and grading

From: Quantitative dynamic contrast-enhance MRI parameters for rectal carcinoma characterization: correlation with tumor tissue composition

  

Vp (ml/100 ml)

Ve (ml/100 ml)

MTT (s)

Ktrans (ml/100 ml/min)

Kep (ml/100 ml/min)

ECV (%)

Histologic grades

 G1

6

4.552.35

20.21 ± 5.41

96.56 ± 62.94

14.01 ± 5.92

83.70 ± 42.79

24.92 ± 10.70

 G2

12

4.80 ± 3.20

24.46 ± 8.11

51.23 ± 17.14

30.66 ± 9.93

131.77 ± 49.86

28.26 ± 8.17

 G3

6

4.28 ± 4.64

27.88 ± 10.76

51.84 ± 19.77

32.87 ± 6.41

130.22 ± 48.37

30.79 ± 9.45

F

 

0.047

1.289

9.890

9.890

2.219

0.627

P

 

0.955

0.297

0.038

0.001

0.134

0.544

T stages

 T2

3

6.79 ± 2.10

29.45 ± 9.61

59.10 ± 14.32

30.68 ± 9.49

106.33 ± 29.80

34.85 ± 9.35

 T3a

10

3.43 ± 2.31

24.70 ± 7.44

76.63 ± 54.33

25.40 ± 11.36

106.03 ± 48.12

26.80 ± 6.82

 T3b

5

3.06 ± 3.80

25.44 ± 12.69

54.52 ± 23.15

29.40 ± 12.50

131.58 ± 68.28

27.81 ± 13.30

 T3c

6

6.77 ± 3.64

19.94 ± 8.41

48.16 ± 17.09

26.02 ± 12.47

137.93 ± 49.04

26.96 ± 8.89

F

 

2.518

0.944

0.780

0.245

0.638

0.635

P

 

0.087

0.438

0.519

0.864

0.599

0.601

N stages

 N0

11

5.64 ± 2.74

23.39 ± 7.68

56.37 ± 14.87

25.90 ± 7.89

114.68 ± 34.62

27.83 ± 7.73

 N1

7

2.33 ± 2.22

27.24 ± 12.13

88.91 ± 62.61

25.49 ± 15.21

99.62 ± 60.02

27.86 ± 12.37

 N2

6

5.37 ± 4.31

22.37 ± 3.54

43.79 ± 14.37

30.97 ± 11.92

150.97 ± 56.27

28.72 ± 8.23

F

 

2.735

0.629

2.901

0.477

1.904

0.020

P

 

0.088

0.543

0.077

0.627

0.174

0.980

Venous invasion

 Negative

15

5.02 ± 3.80

21.98 ± 7.82

64.37 ± 48.18

26.94 ± 12.72

128.00 ± 59.38

25.26 ± 8.57

 Positive

9

3.92 ± 2.23

28.06 ± 8.38

59.95 ± 13.94

27.22 ± 8.51

104.97 ± 27.48

32.72 ± 8.02

t

 

0.790

 − 1.795

0.266

 − 0.058

1.289

 − 2.113

P

 

0.438

0.086

0.792

0.954

0.211

0.046

Nerve invasion

 Negative

17

5.29 ± 3.39

23.35 ± 9.15

67.05 ± 44.09

25.28 ± 10.57

113.93 ± 45.23

27.09 ± 9.15

 Positive

7

2.95 ± 2.52

26.45 ± 6.32

52.20 ± 18.09

31.35 ± 12.08

132.55 ± 63.17

30.42 ± 8.79

t

 

1.638

 − 0.816

0.853

 − 1.228

 − 0.816

 − 0.819

P

 

0.116

0.423

0.403

0.233

0.423

0.422